Cassin, J. (1851). Notes of an examination of the birds composing the family Caprimulgidae, in the collection of the Academy of Natural Sciences of Philadelphia. Proceedings of the Academy of Natural Sciences of Philadelphia. 5(8): 175-190.
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Cassin, J.
1851
Notes of an examination of the birds composing the family Caprimulgidae, in the collection of the Academy of Natural Sciences of Philadelphia
Proceedings of the Academy of Natural Sciences of Philadelphia